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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 406 · 40 questions
TalentJR

How to solve it (Same number of places): Add zeros at the end so every decimal has the same number of places (0.5 = 0.500). Compare or add them like whole numbers, keeping the decimal points in a line. Place value after the point: tenths (0.1), hundredths (0.01), thousandths (0.001).

NameDateTime takenScore ___ / 40
  1. 1.Which is the smallest: 0.21, 0.052, 0.2, 0.178? (a) 0.21 (b) 0.052 (c) 0.2 (d) 0.178
  2. 2.What is the value of the digit 7 in 27.149? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  3. 3.What is the value of the digit 2 in 12.638? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  4. 4.What is the value of the digit 3 in 19.378? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  5. 5.What is the value of the digit 2 in 21.347? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  6. 6.3.81 + 5.3 = ? (a) 9.11 (b) 4.34 (c) 9.01 (d) 9.21
  7. 7.What is the value of the digit 3 in 82.673? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  8. 8.7.85 + 3.1 = ? (a) 8.16 (b) 11.05 (c) 10.85 (d) 10.95
  9. 9.Which is the smallest: 0.029, 0.56, 0.421, 0.5? (a) 0.029 (b) 0.56 (c) 0.421 (d) 0.5
  10. 10.Which is the smallest: 0.296, 0.022, 0.35, 0.3? (a) 0.296 (b) 0.022 (c) 0.35 (d) 0.3
  11. 11.What is the value of the digit 6 in 64.791? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  12. 12.Which is the greatest: 0.42, 0.011, 0.4, 0.384? (a) 0.42 (b) 0.011 (c) 0.4 (d) 0.384
  13. 13.Which is the smallest: 0.035, 0.191, 0.29, 0.2? (a) 0.035 (b) 0.191 (c) 0.29 (d) 0.2
  14. 14.Which is the greatest: 0.557, 0.65, 0.6, 0.077? (a) 0.557 (b) 0.65 (c) 0.6 (d) 0.077
  15. 15.Which is the greatest: 0.676, 0.061, 0.75, 0.7? (a) 0.676 (b) 0.061 (c) 0.75 (d) 0.7
  16. 16.What is the value of the digit 1 in 63.419? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  17. 17.7.71 + 3.1 = ? (a) 10.71 (b) 8.02 (c) 10.81 (d) 10.91
  18. 18.What is the value of the digit 1 in 12.569? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  19. 19.5.55 + 1.1 = ? (a) 6.75 (b) 6.55 (c) 6.65 (d) 5.66
  20. 20.8.52 + 6.2 = ? (a) 14.82 (b) 14.62 (c) 9.14 (d) 14.72
  21. 21.8.13 + 4.3 = ? (a) 12.53 (b) 8.56 (c) 12.43 (d) 12.33
  22. 22.9.46 + 4.9 = ? (a) 9.95 (b) 14.46 (c) 14.26 (d) 14.36
  23. 23.Which is the greatest: 0.7, 0.062, 0.687, 0.71? (a) 0.7 (b) 0.062 (c) 0.687 (d) 0.71
  24. 24.8.99 + 4.1 = ? (a) 12.99 (b) 13.09 (c) 13.19 (d) 9.4
  25. 25.Which is the greatest: 0.034, 0.428, 0.54, 0.5? (a) 0.034 (b) 0.428 (c) 0.54 (d) 0.5
  26. 26.What is the value of the digit 6 in 64.897? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  27. 27.1.57 + 3.3 = ? (a) 4.77 (b) 4.97 (c) 4.87 (d) 1.9
  28. 28.What is the value of the digit 7 in 57.249? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  29. 29.What is the value of the digit 8 in 52.384? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  30. 30.1.85 + 1.7 = ? (a) 3.65 (b) 2.02 (c) 3.55 (d) 3.45
  31. 31.2.52 + 1.5 = ? (a) 4.02 (b) 2.67 (c) 4.12 (d) 3.92
  32. 32.Which is the greatest: 0.112, 0.019, 0.21, 0.2? (a) 0.112 (b) 0.019 (c) 0.21 (d) 0.2
  33. 33.Which is the smallest: 0.6, 0.543, 0.61, 0.083? (a) 0.6 (b) 0.543 (c) 0.61 (d) 0.083
  34. 34.What is the value of the digit 8 in 28.479? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  35. 35.Which is the greatest: 0.28, 0.151, 0.2, 0.053? (a) 0.28 (b) 0.151 (c) 0.2 (d) 0.053
  36. 36.What is the value of the digit 8 in 83.564? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  37. 37.What is the value of the digit 1 in 15.824? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  38. 38.Which is the greatest: 0.312, 0.46, 0.4, 0.036? (a) 0.312 (b) 0.46 (c) 0.4 (d) 0.036
  39. 39.Which is the greatest: 0.42, 0.4, 0.033, 0.388? (a) 0.42 (b) 0.4 (c) 0.033 (d) 0.388
  40. 40.Which is the smallest: 0.4, 0.43, 0.365, 0.096? (a) 0.4 (b) 0.43 (c) 0.365 (d) 0.096

Answer key

  1. 0.052
  2. 7
  3. 2
  4. 0.3
  5. 20
  6. 9.11
  7. 0.003
  8. 10.95
  9. 0.029
  10. 0.022
  11. 60
  12. 0.42
  13. 0.035
  14. 0.65
  15. 0.75
  16. 0.01
  17. 10.81
  18. 10
  19. 6.65
  20. 14.72
  21. 12.43
  22. 14.36
  23. 0.71
  24. 13.09
  25. 0.54
  26. 60
  27. 4.87
  28. 7
  29. 0.08
  30. 3.55
  31. 4.02
  32. 0.21
  33. 0.083
  34. 8
  35. 0.28
  36. 80
  37. 10
  38. 0.46
  39. 0.42
  40. 0.096

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